<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>倒计时</title>
<script src="../js/commonJs.js"></script>
<script type="text/javascript" src="//res.waygc.net/jQuery/jquery-3.4.1.min.js"></script>
</head>
<body>
<p>
<span id="count_down"></span>秒倒计时
</p>
<script type="text/javascript">
Common.Timer.countdown($("#count_down"), 10, function () {
	alert("倒计时结束");
});
</script>
</body>
</html>